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Influence of shearing surface topography on frictional properties of ZnS nanowire-based lubrication system across ductile surfaces / Bassem A. Kheireddin in Transactions of the ASME . Journal of tribology, Vol. 134 N° 2 (Avril 2012) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 134 N° 2 (Avril 2012) . - 07 p. Titre : Influence of shearing surface topography on frictional properties of ZnS nanowire-based lubrication system across ductile surfaces Type de document : texte imprimé Auteurs : Bassem A. Kheireddin, Auteur ; Vinay Narayanunni, Auteur ; Mustafa Akbulut, Auteur Année de publication : 2012 Article en page(s) : 07 p. Note générale : tribology Langues : Anglais (eng) Mots-clés : lubrication;  rms  roughness;  nanoscale  friction;  nanoparticles;  nanowires;  nanotribology;  inter-island  separation;  island  diameter Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : This work deals with the effect of surface roughness parameters on the frictional properties of nanowire-based lubrication systems (NBLS) across Cu surfaces with various topographies. The friction coefficient was discussed in the context of surface roughness parameters including the rms height, inter-island separation and a combined roughness parameter related to the pressure experienced by each nanowire. It was concluded that the rms height of asperity should not be lower than the radius of nanoparticles for effective lubrication. In addition, when the inter-island separation is an integer multiple of the nanowire length, nanowires perform as effective lubricants. Furthermore, the friction coefficient increased when the mean pressure experienced by the nanowires increased. The results obtained in this original study offer some interesting insights into the frictional properties of NBLS as a function of surface roughness parameters. This could lead to a great impact on the selection of nanoparticle-based lubricant aimed at reducing wear and energy losses for various applications. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000002 [...] [article] Influence of shearing surface topography on frictional properties of ZnS nanowire-based lubrication system across ductile surfaces [texte imprimé] / Bassem A. Kheireddin, Auteur ; Vinay Narayanunni, Auteur ; Mustafa Akbulut, Auteur . - 2012 . - 07 p. tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 134 N° 2 (Avril 2012) . - 07 p. Mots-clés : lubrication;  rms  roughness;  nanoscale  friction;  nanoparticles;  nanowires;  nanotribology;  inter-island  separation;  island  diameter Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : This work deals with the effect of surface roughness parameters on the frictional properties of nanowire-based lubrication systems (NBLS) across Cu surfaces with various topographies. The friction coefficient was discussed in the context of surface roughness parameters including the rms height, inter-island separation and a combined roughness parameter related to the pressure experienced by each nanowire. It was concluded that the rms height of asperity should not be lower than the radius of nanoparticles for effective lubrication. In addition, when the inter-island separation is an integer multiple of the nanowire length, nanowires perform as effective lubricants. Furthermore, the friction coefficient increased when the mean pressure experienced by the nanowires increased. The results obtained in this original study offer some interesting insights into the frictional properties of NBLS as a function of surface roughness parameters. This could lead to a great impact on the selection of nanoparticle-based lubricant aimed at reducing wear and energy losses for various applications. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000002 [...]